漏洞信息
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Vulnerability Title
Buffer underflow in bc_shift_addsub
Vulnerability Description
In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Vulnerability Type
跨界内存读
Vulnerability Title
PHP 缓冲区错误漏洞
Vulnerability Description
PHP(PHP:Hypertext Preprocessor,PHP:超文本预处理器)是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发,支持多种数据库及操作系统。 PHP 7.2.26之前的7.2.x版本、7.3.13之前的7.3.x版本和7.4.0版本中的bcmath扩展功能存在缓冲区错误漏洞。攻击者可借助特制字符串利用该漏洞获取某些内存位置的内容。
CVSS Information
N/A
Vulnerability Type
N/A